. >>> this is a live look in johannesburg, south africa, where visitors are gathering to honor nelson mandela today on a national day of mourning. mandela died thursday at the age of 95. now for the first time we are hearing from mandela's family. >> in the mandela household, he's no longer with us physically. his spirit is with us. we have lost a great man. the greatness in our family was in the simplicity of his nature in our midsts. >> president obama will travel to south africa for a memorial on tuesday. he'll be joined on air force one by president george w. bush and mrs. bush. plez clinton is expected to join as well. >>> carrie underwood is firing back at critics on her "sound of music" performance. ♪ ♪ >> the country star played ma via von trapp in the three hour live spigsal. she's been getting hate tweets. >> come on. >> she claims she got even more after thursday's broadcast. so she responded to the haters like this, by tweeting, plain and simple, many people just need jesus. they will be in my prayers tonight adding a bible verse there at the end. sounds like she's dea